package Test1;

import java.util.Random;
import java.util.Scanner;

class D{
    public float getNum() {
        return 3.0f;
    }
}
class G extends D {
    public void getNum(double d){}

}


public class TestDemo8 {
    public static void main(String[] args) {
        Scanner in = new Scanner(System.in);
        int n = in.nextInt();
        int[][] array = new int[n][n];

    }
}
